| Batman: Arkham Origins (Nov 6, 2012 12.15 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 6, 2012 12.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 7, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Nov 8, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 11, 2012 Disc Swap Test prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 16, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 18, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 5, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Oct 8, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 10, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 11, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 12, 2013 17.05 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 12, 2013 19.49 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 15, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 03.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 06.42 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 11.47 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 17, 2012 13.42 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 19, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 2, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 20, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 21, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 23, 2013 18.59 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 23, 2013 23.44 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 27, 2012 12.41 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 27, 2012 13.41 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 3, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 30, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 4, 2013 02.46 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 4, 2013 17.45 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 5, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 6, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 7, 2012 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 8, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer Xbox 360 prototype) | | Xbox 360 | | |
| Batman: Arkham Origins (Sep 9, 2013 Multiplayer prototype) | | PlayStation 3 | | |
| Batman: Arkham Origins Blackgate (May 30, 2013 Prototype) | | PlayStation Vita | | |
| Batman: Dark Tomorrow (Aug 25, 2002 prototype) | | Nintendo GameCube | | |
| Batman: Dark Tomorrow (Feb 26, 2003 prototype) | | Xbox | | |
| Batman: Return of the Joker (Prototype) | | NES | | |
| Batman: Revenge of the Joker (Prototype) | | SNES | | |
| Battle (prototype) | | Commodore 64 | | |
| Battle Arena Toshinden URA (Nov 7, 1996 prototype) | | Sega Saturn | | |
| Battle Battle League (1992 prototype) | | FDS | | |
| Battle Blaze (Prototype A) | | SNES | | |
| Battle Fantasia (Apr 9, 2008 prototype) | | Xbox 360 | | |
| Battle Master: Kyuukyoku no Senshi-tachi (Prototype) | | SNES | | |
| Battle Out Run (Prototype) | | Sega Master System | | |
| Battle Rage: Mech Conflict (Feb 5, 2009 prototype) | | Nintendo Wii | | |
| Battle Wings (Prototype) | | Sega Master System | | |
| Battle vs. Chess (Feb 6, 2012 prototype) | | PlayStation Portable | | |
| Battle: Los Angeles (Feb 14, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Feb 18, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Feb 28, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Feb 7, 2011 prototype) | | Xbox 360 | | |
| Battle: Los Angeles (Jan 31, 2011 prototype) | | Xbox 360 | | |
| BattleBots (Alpha 4.6 prototype) | | Nintendo GameCube | | |
| BattleSport (May 11, 1995 prototype) | | 3DO | | |
| BattleSport (Sep 22, 1995 prototype) | | 3DO | | |
| Battlecorps (Feb 11, 1994 prototype) | | Sega CD | | |
| Battlefield 1943 (May 13, 2009 prototype) | | Xbox 360 | | |
| Battlefield 2: Modern Combat (Feb 14, 2006 EU prototype) | | Xbox 360 | | |
| Battlefield 2: Modern Combat (Feb 14, 2006 USA prototype) | | Xbox 360 | | |
| Battlefield 2: Modern Combat (Jan 20, 2005 prototype) | | PlayStation 2 | | |
| Battlefield 3 (DLC HD Texture Pack prototype) | | Xbox 360 | | |
| Battlefield 3 (Oct 1, 2011 prototype) | | PlayStation 3 | | |
| Battlefield: Bad Company (DLC Weapon Unlock 1 display name prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (3 DLCs Pack prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (DLC VIP prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (Jan 18, 2010 prototype) | | Xbox 360 | | |
| Battlefield: Bad Company 2 (Nov 20, 2009 EU Multiplayer prototype) | | PlayStation 3 | | |
| Battlefield: Bad Company 2 (Patch Data prototype) | | Xbox 360 | | |
| Battlestar Galactica (Jul 31, 2007 DLC Expansion 1 prototype) | | Xbox 360 | | |
| Battlestar Galactica (Sep 21, 2007 prototype) | | Xbox 360 | | |
| Battlestar Galactica (Sep 29, 2003 prototype) | | PlayStation 2 | | |
| Battlestations: Pacific (DLC Volcano Map Pack prototype) | | Xbox 360 | | |
| Battlestations: Pacific (Mar 12, 2009 prototype) | | Xbox 360 | | |
| Battlestorm (Amstrad CPC prototype) | | Amstrad CPC | | |
| Battletech: Gray Death Legion (Jan 5, 1995 prototype) | | Sega CD | | |
| Battletoads (Prototype) | | NES | | |
| Battletoads in Battlemaniacs (prototype) | | SNES | | |
| Battlezone (Aug 28, 2006 prototype) | | PlayStation Portable | | |
| Battlezone (Feb 18, 1998 prototype) | | PC | | |
| Battlezone (Feb 9, 1998 prototype) | | PC | | |
| Battlezone (May 12, 1983 prototype) | | Atari 2600 | | |
| Battlezone (May 2, 1983 prototype) | | Atari 2600 | | |
| Battlezone (Sep 13, 2006 prototype) | | PlayStation Portable | | |
| Bayonetta (May 24, 2009 prototype) | | Xbox 360 | | |
| Beach Volleyball (Apr 21, 2000 prototype) | | PlayStation | | |
| Beastball (Prototype) | | Sega Mega Drive | | |
| Beat'n Groovy (May 13, 2008 prototype) | | Xbox 360 | | |
| Beaterator (Jan 21, 2009 prototype) | | PlayStation Portable | | |
| Beautiful Katamari (DLC prototype) | | Xbox 360 | | |
| Bee Movie Game (Jul 27, 2007 prototype) | | Xbox 360 | | |
| Beethoven's 2nd (Sep 13, 1993 prototype) | | SNES | | |
| Beethoven's 2nd: The Quest for Pups (Prototype) | | Sega Mega Drive | | |
| Beetlejuice (Prototype) | | NES | | |
| Beijing 2008 (Mar 27, 2008 prototype) | | Xbox 360 | | |
| Bejeweled 2 Deluxe (Nov 8, 2005 prototype) | | Xbox 360 | | |
| Bellator MMA Onslaught (April 11, 2013 Prototype) | | Xbox 360 | | |
| Ben 10 (Aug 5, 2007 prototype) | | PC | | |
| Beowulf: The Game (Oct 22, 2007 prototype) | | PlayStation Portable | | |
| Berenstain Bears (Aug 1, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 11, 1994 prototype A) | | Game Gear | | |
| Berenstain Bears (Aug 11, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 12, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 13, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 14, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 19, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 20, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 24, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 25, 1994 prototype B) | | Game Gear | | |
| Berenstain Bears (Aug 26, 1994 prototype B) | | Game Gear | | |
| Berenstain Bears (Aug 26, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Aug 27, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jul 15, 1994 prototype B) | | Game Gear | | |
| Berenstain Bears (Jul 21, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jul 22, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jul 27, 1994 prototype) | | Game Gear | | |
| Berenstain Bears (Jun 28, 1994 prototype) | | Game Gear | | |
| Berenstain Bears' A School Day (Dec 20, 1994 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 13, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 16, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 26, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 27, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 30, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 31, 1995 prototype) | | Sega Pico | | |
| Berenstain Bears' A School Day (Jan 6, 1995 prototype) | | Sega Pico | | |
| Berserk: Millennium Falcon Hen Seima Senki no Shou (Jul 12, 2004 prototype) | | PlayStation 2 | | |
| Best of the Best: Championship Karate (Prototype A) | | SNES | | |
| Best of the Best: Championship Karate (Prototype B) | | SNES | | |
| Bet on Soldier: Blood Sport (May 30, 2005 prototype) | | PC | | |
| Beyond Good & Evil (Oct 13, 2003 prototype) | | PlayStation 2 | | |
| Beyond Good & Evil HD (Dec 11, 2010 prototype) | | Xbox 360 | | |
| Beyond Oasis (Apr 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Nov 1, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Nov 15, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Oct 17, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Oasis (Oct 4, 1994 prototype) | | Sega Mega Drive | | |
| Beyond Zero Tolerance (Jul 14, 1995 prototype) | | Sega Mega Drive | | |
| Big Bird's Egg Catch (Dec 8, 1982 prototype) | | Atari 2600 | | |
| Big Bird's Egg Catch (May 17, 1983 prototype) | | Atari 2600 | | |
| Big Bird's Egg Catch (May 2, 1983 prototype) | | Atari 2600 | | |
| Big Button Controller (Aug 10, 2010 prototype) | | Xbox 360 | | |
| Big Hero 6: Battle in the Bay (Apr 24, 2014 prototype) | | Nintendo 3DS | | |
| Big Mutha Truckers (Mar 5, 2003 prototype) | | PC | | |
| Big Sky Trooper (May 23, 1995 prototype) | | SNES | | |
| Big Sky Trooper (SNEAKERS prototype) | | SNES | | |
| Big Top Circus (0.2.0197 prototype) | | Nintendo Wii | | |
| Big Top Circus (0.2.121 prototype) | | Nintendo Wii | | |
| Big Top Circus (anaglyph prototype) | | Nintendo Wii | | |
| Bill Walsh College Football 95 (Jul 20, 1995 prototype) | | PC | | |
| Bill's Tomato Game (Prototype) | | Sega Mega Drive | | |
| Billy Hatcher and the Giant Egg (Jan 12, 2006 prototype) | | PC | | |
| Bing Bing! Bingo (prototype) | | SNES | | |
| Bio Force Ape (Prototype) | | NES | | |
| Bio-Hazard Battle (Prototype) | | Sega Mega Drive | | |
| BioShock 2 (Dec 16, 2009 prototype) | | Xbox 360 | | |
| BioShock 2 (Nov 30, 2009 prototype) | | Xbox 360 | | |
| BioShock Infinite (Oct 17, 2012 prototype) | | PC | | |
| Biohazard (Aug 4, 1995 prototype) | | PlayStation | | |
| Biohazard (Jan 31, 1996 prototype) | | PlayStation | | |
| Biohazard (Oct 4, 1995 prototype) | | PlayStation | | |
| Biohazard 2 (Nov 6, 1996 prototype) | | PlayStation | | |
| Biohazard 2 (Oct 31, 1997 prototype) | | PlayStation | | |
| Bionic Breakthrough (Jun 22, 1984 prototype) | | Atari 2600 | | |
| Bionic Commando (Oct 6, 2008 prototype) | | Xbox 360 | | |
| Bionic Commando (Prototype) | | NES | | |
| Bionic Commando Rearmed 2 (Oct 27, 2010 prototype) | | Xbox 360 | | |
| Bionicle 2 (Jan 21, 2004 Tech Demo) | | Xbox | | |
| Bionicle 2: City of Legends (Dec 9, 2003 tech demo) | | PlayStation 2 | | |
| Bionicle 2: City of Legends (Jan 16, 2004 tech demo) | | PlayStation 2 | | |
| Bionicle 2: City of Legends (Jan 19, 2004 tech demo) | | PlayStation 2 | | |
| Bionicle Heroes (Sep 28, 2006 prototype) | | PlayStation 2 | | |
| Bionicle Heroes (Sep 4, 2006 prototype) | | PlayStation 2 | | |
| Bird Week (prototype) | | NES | | |
| Black & White: Creatures (Dec 9, 2005 prototype) | | PlayStation Portable | | |
| Black & White: Creatures (May 13, 2005 Nintendo DS prototype) | | Nintendo DS | | |
| Black & White: Creatures (Nintendo DS prototype) | | Nintendo DS | | |
| Black (Aug 16, 2005 prototype) | | PlayStation 2 | | |
| Black (Dec 5, 2005 Xbox demo) | | Xbox | | |
| Black 2 (Feb 13, 2007 prototype) | | Xbox 360 | | |
| Black 2 (Jun 29, 2006 prototype) | | Xbox 360 | | |
| Black Sigil: Blade of the Exiled (Feb 10, 2007 prototype) | | Game Boy Advance | | |
| BlackThorne (CES prototype) | | SNES | | |
| Blackwater (Aug 17, 2011 prototype) | | Xbox 360 | | |
| Blade Eagle (Prototype) | | Sega Master System | | |
| Blade Eagle 3-D (Prototype) | | Sega Master System | | |
| Blade Force (Aug 8, 1995 prototype) | | 3DO | | |
| Blade Force (Jul 14, 1995 prototype) | | 3DO | | |
| Blade Force (Sep 6, 1995 prototype) | | 3DO | | |
| Blade Kitten (Jun 24, 2010 prototype) | | Xbox 360 | | |
| Blade Kitten (May 25, 2010 DLC Episode 2 prototype) | | Xbox 360 | | |
| Bladestorm: The Hundred Years' War (Sep 6, 2007 prototype) | | Xbox 360 | | |
| Blaster Master (May 20, 1988 prototype) | | NES | | |
| Blaster Master 2 (Apr 15, 1993 prototype) | | Sega Mega Drive | | |
| Blaster Master 2 (Prototype) | | Sega Mega Drive | | |
| Blaster Master Boy (Prototype) | | Game Boy | | |
| Blasto (Mar 11, 1998 build) | | PlayStation | | |
| BlazBlue: Calamity Trigger (5 DLCs Pack prototype) | | Xbox 360 | | |
| BlazBlue: Calamity Trigger (Apr 23, 2009 prototype) | | Xbox 360 | | |
| BlazBlue: Continuum Shift II (Feb 28, 2011 prototype) | | PlayStation Portable | | |
| Blazing Angels: Squadrons of WWII (Feb 16, 2006 prototype) | | Xbox 360 | | |
| Blazing Birds (Jun 29, 2008 prototype) | | Xbox 360 | | |
| Bleach: Dark Souls (prototype) | | Nintendo DS | | |
| Blinx: The Time Sweeper (Aug 12, 2002 prototype) | | Xbox | | |
| BlitzTech Framework (May 11, 2009 prototype) | | Xbox 360 | | |
| Block Out (Prototype) | | NES | | |
| Bloctrix (Aug 26, 1998 prototype) | | PC | | |
| Bloctrix (Jul 16, 1998 prototype) | | PC | | |
| Bloctrix (Nov 24, 1998 prototype) | | PC | | |
| Bloctrix (Nov 5, 1998 prototype) | | PC | | |
| Bloctrix (Oct 14, 1998 prototype) | | PC | | |
| Bloctrix (Oct 15, 1998 13.00 prototype) | | PC | | |
| Bloctrix (Oct 15, 1998 16.18 prototype) | | PC | | |
| Bloctrix (Oct 25, 1998 prototype) | | PC | | |
| Bloctrix (Oct 28, 1998 prototype) | | PC | | |
| Bloctrix (Oct 29, 1998 prototype) | | PC | | |
| Bloctrix (Oct 5, 1998 prototype) | | PC | | |
| Bloctrix (Sep 10, 1998 prototype) | | PC | | |
| Bloctrix (Sep 18, 1998 prototype) | | PC | | |
| Bloctrix (Sep 21, 1998 prototype) | | PC | | |
| Bloctrix (Sep 22, 1998 prototype) | | PC | | |
| Bloctrix (Sep 24, 1998 prototype) | | PC | | |
| Bloctrix (Sep 28, 1998 prototype) | | PC | | |
| Bloctrix (Sep 8, 1998 prototype) | | PC | | |
| Bloctrix (Sep 9, 1998 prototype) | | PC | | |
| Blokus Portable: Steambot Championship (Jul 25, 2006 demo) | | PlayStation Portable | | |
| Blood Knights (Jan 25, 2013 prototype) | | Xbox 360 | | |
| Blood Lines (Jun 21, 1998 prototype) | | PlayStation | | |
| Blood Lines (May 12, 1997 prototype) | | PlayStation | | |
| Blood Omen: Legacy of Kain (Jul 10, 1997 prototype) | | PC | | |
| Blood Omen: Legacy of Kain (Jul 12, 1996 prototype) | | PlayStation | | |
| Blood Omen: Legacy of Kain (Jul 15, 1996 prototype) | | PlayStation | | |
| Blood Omen: Legacy of Kain (Sep 16, 1996 prototype) | | PlayStation | | |
| Blood Wake (Aug 18, 2001 prototype) | | Xbox | | |
| BloodRayne (Oct 22, 2002 prototype) | | PC | | |
| BloodRayne: Betrayal (May 31, 2011 prototype) | | Xbox 360 | | |
| Bloodborne (Alpha Network Test/TGS Build) | | PlayStation 4 | | |
| Bloodline (prototype) | | Amiga | | |
| Bloody Roar: Primal Fury (Jan 8, 2002 prototype) | | Nintendo GameCube | | |
| Blue Angelo: Angels from the Shrine (Early prototype) | | Game Boy Advance | | |
| Blue Angelo: Angels from the Shrine (Late prototype) | | Game Boy Advance | | |
| Blueprint (prototype B) | | Atari 2600 | | |
| Blues Brothers 2000 (Jan 15, 2000 prototype) | | Nintendo 64 | | |
| Blues Brothers 2000 (Jun 30, 2000 prototype) | | Nintendo 64 | | |
| Blur 2 (Nov 4, 2010 prototype) | | Xbox 360 | | |
| Bobby's World (Prototype) | | SNES | | |
| Body Count (Feb 28, 1994 prototype U) | | Sega Mega Drive | | |
| Body Count (Feb 8, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Jan 27, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Mar 3, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Mar 8, 1994 prototype A) | | Sega Mega Drive | | |
| Body Count (Mar 8, 1994 prototype) | | Sega Mega Drive | | |
| Body Count (Mar 9, 1994 prototype) | | Sega Mega Drive | | |
| Body and Brain Connection (DLC Higher Learning I prototype) | | Xbox 360 | | |
| Body and Brain Connection (DLC Higher Learning II prototype) | | Xbox 360 | | |
| Body and Brain Connection (Jan 27, 2011 demo) | | Xbox 360 | | |
| Bodycount (Jul 9, 2011 prototype) | | Xbox 360 | | |
| Boggle (Aug 7, 1978 prototype) | | Atari 2600 | | |
| Bomb (prototype) | | Commodore 64 | | |
| Bomberman (May 27, 2004 prototype) | | N-Gage | | |
| Bomberman II (Prototype) | | NES | | |
| Bomberman Land (Nov 6, 2007 prototype) | | Nintendo Wii | | |
| Bomberman Live (Oct 29, 2008 prototype) | | Xbox 360 | | |
| Bomberman Online (Feb 7, 2001 prototype) | | Dreamcast | | |
| Bomberman Online (Sep 17, 2001 prototype) | | Dreamcast | | |
| Bomberman Online (Sep 8, 2001 prototype) | | Dreamcast | | |
| Bonk's Adventure (Prototype) | | Game Boy | | |
| Bonk: Brink of Extinction (DLC 1 A prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 1 B prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 1 C prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 2 A prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 2 B prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 2 C prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 3 A prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 3 B prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (DLC 3 C prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (Dec 10, 2010 prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (Jun 10, 2010 prototype) | | Xbox 360 | | |
| Bonk: Brink of Extinction (Jun 24, 2010 prototype) | | Xbox 360 | | |
| Bonkers (Aug 25, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (Aug 29, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (Aug 4, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (Mar 28, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers (May 3, 1994 prototype) | | Sega Mega Drive | | |
| Bonkers Wax Up! (Dec 11, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Dec 12, 1994 prototype D) | | Game Gear | | |
| Bonkers Wax Up! (Dec 3, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Dec 5, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Dec 7, 1994 prototype C) | | Game Gear | | |
| Bonkers Wax Up! (Dec 8, 1994 prototype B) | | Game Gear | | |
| Bonkers Wax Up! (Dec 8, 1994 prototype C) | | Game Gear | | |
| Bonkers Wax Up! (Nov 15, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 21, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 23, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 26, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Nov 29, 1994 prototype) | | Game Gear | | |
| Bonkers Wax Up! (Oct 31, 1994 prototype) | | Game Gear | | |
| Boogerman: A Pick and Flick Adventure (Apr, 1996 Prototype) | | NES | | |
| Boogie (Jul 2, 2007 prototype) | | Nintendo Wii | | |
| Boogie (Jun 26, 2007 prototype) | | Nintendo Wii | | |
| Boogie Bunnies (Nov 20, 2007 prototype) | | Xbox 360 | | |
| Boom Boom Rocket (DLC Guitar Pack A prototype) | | Xbox 360 | | |
| Boom Boom Rocket (DLC Guitar Pack B prototype) | | Xbox 360 | | |
| Boom Boom Rocket (DLC Test 2 prototype) | | Xbox 360 | | |
| Boom Boom Rocket (Jul 19, 2007 prototype) | | Xbox 360 | | |
| Borderlands (Aug 14, 2009 prototype) | | Xbox 360 | | |
| Borderlands (Patch Data prototype) | | Xbox 360 | | |
| Borderlands (Sep 30, 2010 Patch Data prototype) | | PlayStation 3 | | |
| Born in Space (prototype) | | Commodore 64 | | |
| Boulder Dash-XL (Jan 19, 2011 prototype) | | Xbox 360 | | |
| Boulder Dash-XL (Jan 21, 2011 prototype) | | Xbox 360 | | |
| Bound High! (Prototype B) | | Virtual Boy | | |
| Bounty Arms (Jan 30, 1995 demo) | | PlayStation | | |
| Bounty Sword (May 16, 1995 prototype) | | SNES | | |
| Boxing Legends of the Ring (prototype) | | SNES | | |
| Brain Challenge (Dec 7, 2007 prototype) | | Xbox 360 | | |
| Bram Stoker's Dracula (SNES prototype) | | SNES | | |
| Brave: A Warrior's Tale (Apr 3, 2009 prototype) | | Nintendo Wii | | |
| Brave: A Warrior's Tale (Feb 19, 2009 prototype) | | Xbox 360 | | |
| Brave: A Warrior's Tale (Sep 30, 2008 prototype) | | Xbox 360 | | |
| Braveheart (Jun 19, 1999 prototype) | | PC | | |
| Breach (Prototype) | | Sega Mega Drive | | |
| Breath of Fire II (Prototype) | | SNES | | |
| Breath of Fire IV (May 1, 2000 E3 demo) | | PlayStation | | |
| Broken Sword: The Sleeping Dragon (Oct 24, 2003 prototype) | | Xbox | | |
| Brooklyn Stories (Feb 12, 2010 Dev demo) | | PlayStation 3 | | |
| Brothers in Arms: Earned in Blood (Aug 1, 2005 prototype) | | PlayStation 2 | | |
| Brothers in Arms: Road to Hill 30 (Feb 12, 2005 prototype) | | PlayStation 2 | | |
| Brothers in Arms: Road to Hill 30 (Feb 15, 2005 prototype) | | Xbox | | |
| Brothers in Arms: Road to Hill 30 (Jan 22, 2005 prototype) | | Xbox | | |
| Brothers in Arms: Road to Hill 30 (Nov 18, 2004 prototype) | | Xbox | | |
| Brothers: A Tale of Two Sons (Mar 18, 2013 prototype) | | Xbox 360 | | |
| Brunswick Pro Bowling (April 2nd, 2007 prototype) | | PlayStation 2 | | |
| Brutal: Paws of Fury (SNES prototype) | | SNES | | |
| Brütal Legend (DLC HAMMER OF INFINITE FATE prototype) | | Xbox 360 | | |
| Bubble Bobble (Dec 28, 1990 prototype) | | Game Boy | | |
| Bubble Bobble (Game Gear Prototype) | | Game Gear | | |
| Bubble Bobble (NES Prototype) | | NES | | |
| Bubble Bobble II (Dec 13, 1993 prototype) | | Arcade | | |
| Bubble Game (Apr 22, 2008 prototype) | | Xbox 360 | | |
| Bubble and Squeak (PAL prototype) | | Sega Mega Drive | | |
| Bubsy 3D (Mar 13, 1997 prototype) | | PlayStation | | |
| Bubsy II (Jul 12, 1994 prototype) | | SNES | | |
| Bubsy II (Nov 10, 1994 prototype) | | Game Boy | | |
| Bubsy in Claws Encounters of the Furred Kind (Prototype A) | | SNES | | |
| Bubsy in Claws Encounters of the Furred Kind (Prototype B) | | SNES | | |
| Bug Bash (Mar 23, 2007 prototype) | | Xbox 360 | | |
| Bugs Bunny & Taz: Time Busters (Aug 5, 2000 prototype) | | PlayStation | | |
| Bugs Bunny (Aug 4, 1983 prototype) | | Atari 2600 | | |
| Bugs Bunny in Rabbit Rampage (Nov 30, 1993 prototype) | | SNES | | |
| Bujingai: The Forsaken City (Nov 2, 2003 prototype) | | PlayStation 2 | | |
| Buku Sudoku (DLC Puzzle Pack 1 A prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 1 B prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 2 prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 3 prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 4 prototype) | | Xbox 360 | | |
| Buku Sudoku (DLC Puzzle Pack 5 prototype) | | Xbox 360 | | |
| Bulletstorm (Aug 31, 2011 prototype) | | Xbox 360 | | |
| Bulletstorm (Jul 14, 2011 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC Leash Colors 01 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC Leash Colors 02 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC PMC Pre-order Skin prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 1, 2010 DLC Pre-Order Boot Skin prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 12, 2010 DLC Echopack 01 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 12, 2010 DLC Echopack 02 prototype) | | Xbox 360 | | |
| Bulletstorm (Nov 23, 2010 DLC Pre-Order Character Skin prototype) | | Xbox 360 | | |
| Bulletstorm (Oct 7, 2010 DLC Bonus XP 01 prototype) | | Xbox 360 | | |
| Burning Rangers (Dec 1, 1997 prototype) | | Sega Saturn | | |
| Burning Rangers (Jan 3, 1998 prototype) | | Sega Saturn | | |
| Burnout (Jan 3, 2002 prototype) | | PlayStation 2 | | |
| Burnout (Mar 21, 2002 prototype) | | Xbox | | |
| Burnout (Mar 6, 2002 prototype) | | Nintendo GameCube | | |
| Burnout (Sep 12, 2001 prototype) | | PlayStation 2 | | |
| Burnout 2: Point of Impact (Aug 31, 2002 prototype) | | PlayStation 2 | | |
| Burnout 3: Takedown (Apr 28, 2004 demo) | | PlayStation 2 | | |
| Burnout 3: Takedown (Jul 20, 2004 11.14 prototype) | | PlayStation 2 | | |
| Burnout 3: Takedown (Jul 28, 2004 prototype) | | Xbox | | |
| Burnout 3: Takedown (Jun 21, 2004 demo) | | PlayStation 2 | | |
| Burnout 3: Takedown (May 29, 2004 demo) | | PlayStation 2 | | |
| Burnout Crash! (May 12, 2011 prototype) | | Xbox 360 | | |
| Burnout Dominator (Jan 31, 2007 prototype) | | PlayStation 2 | | |
| Burnout Legends (Jun 6, 2005 prototype) | | PlayStation Portable | | |
| Burnout Paradise (Aug 16, 2008 DLC Bikes prototype) | | Xbox 360 | | |
| Burnout Paradise (DLC 1.9 prototype) | | Xbox 360 | | |
| Burnout Paradise (DLC Content Test prototype) | | Xbox 360 | | |
| Burnout Paradise (Feb 22, 2007 prototype) | | Xbox 360 | | |
| Burnout Paradise (Nov 28, 2007 prototype) | | Xbox 360 | | |
| Burnout Paradise (Nov 30, 2007 prototype) | | PlayStation 3 | | |
| Burnout Paradise (Oct 31, 2007 PlayStation 3 prototype) | | PlayStation 3 | | |
| Burnout Paradise (Oct 31, 2007 Xbox 360 prototype) | | Xbox 360 | | |
| Burnout Paradise (Update Pack prototype) | | Xbox 360 | | |
| Burnout Revenge (Aug 4, 2005 prototype) | | PlayStation 2 | | |
| Burnout Revenge (Feb 7, 2006 prototype) | | Xbox 360 | | |
| Burnout Revenge (Jul 14, 2005 prototype) | | PlayStation 2 | | |
| Bushido Warrior (May 25, 1988 prototype) | | Amstrad CPC | | |
| Bust a Groove (Aug 27, 1998 prototype) | | PlayStation | | |
| Bust a Groove (Jul 30, 1998 prototype) | | PlayStation | | |
| Buzz & Waldog (Prototype B) | | NES | | |
| Buzz & Waldog (Prototype) | | NES | | |
| Buzz! Junior: Monster Rumble (Aug 20, 2007 build) | | PlayStation 2 | | |
| Buzz! Junior: RoboJam (Jan 12, 2007 prototype) | | PlayStation 2 | | |
| Buzz! Junior: RoboJam (Mar 14, 2007 prototype) | | PlayStation 2 | | |
| Buzz! Master Quiz (Jul 25, 2008 prototype) | | PlayStation Portable | | |
| Buzz! Quiz TV (May 2, 2008 prototype) | | PlayStation 3 | | |
| Buzz! Quiz World (Aug 26, 2009 prototype) | | PlayStation 3 | | |
| Buzz! Quiz World (Jan 22, 2009 prototype) | | PlayStation 3 | | |
| Buzz! Quiz World (Sep 3, 2009 A prototype) | | PlayStation 3 | | |
| Buzz! Quiz World (Sep 3, 2009 B prototype) | | PlayStation 3 | | |
| Buzz! The Sports Quiz (Sep 7, 2006 prototype) | | PlayStation 2 | | |
| Buzz!: The Ultimate Music Quiz (Mar 14, 2010 Install Data prototype) | | PlayStation 3 | | |
| C-12: Final Resistance (Dec 19, 2000 prototype) | | PlayStation | | |
| CART Precision Racing (Sep 29, 1997 prototype) | | PC | | |
| CJ's Island Antics (Final CJ build) | | Commodore 64 | | |
| CJ: Elephant Fugitive (Oct 22, 1993 prototype) | | Game Gear | | |
| Cabal (Atari Lynx prototype) | | Atari Lynx | | |
| Cabbage Patch Kids: Adventures in the Park (Aug 21, 1984 prototype) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (ColecoVision prototype B) | | ColecoVision | | |
| Cabbage Patch Kids: Adventures in the Park (Jul 27, 1984 prototype) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (Jun 14, 1984 prototype) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (Jun 1984 prototype) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (Jun 29, 1984 prototype) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (May 24, 1984 prototype) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (Sep 13, 1984 prototype A) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (Sep 13, 1984 prototype B) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (Sep 4, 1984 prototype) | | Atari 2600 | | |
| Cabbage Patch Kids: Adventures in the Park (Sep 7, 1984 prototype) | | Atari 2600 | | |
| Cadillac (sample) | | NES | | |
| Cadillacs and Dinosaurs: The Second Cataclysm (1995 prototype) | | PC | | |
| Caesar's Palace (Prototype B) | | NES | | |
| Caesars Palace Advance: Millennium Gold Edition (Prototype) | | Game Boy Advance | | |
| Cake-ya San Monogatari: Oishii Sweets o Tsukurou (Prototype A) | | Nintendo 3DS | | |
| Cake-ya San Monogatari: Oishii Sweets o Tsukurou (Prototype B) | | Nintendo 3DS | | |
| Cake-ya San Monogatari: Oishii Sweets o Tsukurou (Prototype C) | | Nintendo 3DS | | |
| California Games II (Cartridge Prototype) | | SNES | | |
| California Speed (Apr 26, 1999 prototype) | | Nintendo 64 | | |
| Call of Cthulhu: Destiny's End (May 15, 2005 prototype) | | PlayStation 2 | | |
| Call of Duty (Jul 30, 2004 prototype) | | N-Gage | | |
| Call of Duty (Sep 15, 2004 prototype) | | N-Gage | | |
| Call of Duty 2 (DLC Invasion Pack prototype) | | Xbox 360 | | |
| Call of Duty 3 (DLC Bravo Map Pack prototype) | | Xbox 360 | | |
| Call of Duty 3 (Oct 19, 2006 Multiplayer prototype) | | Xbox | | |
| Call of Duty 4: Modern Warfare (Apr 11, 2007 prototype) | | Xbox 360 | | |
| Call of Duty 4: Modern Warfare (DLC Winter Crash Bonus Map prototype) | | Xbox 360 | | |
| Call of Duty 4: Modern Warfare (Jun 11, 2007 prototype) | | Xbox 360 | | |
| Call of Duty 4: Modern Warfare (Mar 23, 2007 prototype) | | Xbox 360 | | |
| Call of Duty 4: Modern Warfare (May 4, 2007 prototype) | | Xbox 360 | | |
| Call of Duty 4: Modern Warfare (Sep 7, 2007 prototype) | | Xbox 360 | | |
| Call of Duty Black Ops (Sep 26, 2011 Prototype) | | Xbox 360 | | |
| Call of Duty: Advanced Warfare (May 3, 2013 Prototype) | | Xbox 360 | | |
| Call of Duty: Advanced Warfare (Sep 16, 2014 Prototype) | | Xbox 360 | | |
| Call of Duty: Advanced Warfare (Sep 4, 2014 Prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops (Jan 19, 2011 DLC First Strike prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops (Sep 6, 2010 Multiplayer Prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops II (Aug 22, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops II (Feb 26, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops II (Jun 11, 2013 Multiplayer prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops II (Oct 18, 2012 prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops II (Oct 2, 2012 prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops II (Patch Data prototype) | | Xbox 360 | | |
| Call of Duty: Black Ops II (Sep 5, 2013 prototype) | | Xbox 360 | | |
| Call of Duty: Future Warfare (Dec 18, 2011 prototype) | | Xbox 360 | | |
| Call of Duty: Ghosts (Aug 29, 2013 prototype) | | Xbox 360 | | |
| Call of Duty: Ghosts (July 19, 2013 prototype) | | Xbox 360 | | |
| Call of Duty: Ghosts (May 21, 2013 prototype) | | Xbox 360 | | |
| Call of Duty: Ghosts (May 9, 2013 prototype) | | Xbox 360 | | |
| Call of Duty: Ghosts (Sep 2, 2013 prototype) | | Xbox 360 | | |
| Call of Duty: Ghosts (Sep 23, 2013 Multiplayer) | | Xbox 360 | | |
| Call of Duty: Ghosts (Sep 9, 2013 prototype) | | Xbox 360 | | |
| Call of Duty: Infinite Warfare (Oct 19, 2016 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Modern Warfare (Sep 12, 2019 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Modern Warfare (Sep 16, 2019 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Modern Warfare 2 (Dec 21, 2009 Patch Data prototype) | | PlayStation 3 | | |
| Call of Duty: Modern Warfare 3 (Oct 11, 2011 Prototype) | | Xbox 360 | | |
| Call of Duty: Modern Warfare 3 (Patch Data prototype) | | Xbox 360 | | |
| Call of Duty: Modern Warfare 3 (Sep 19, 2011 Prototype) | | Xbox 360 | | |
| Call of Duty: Modern Warfare II (Sep 15, 2022 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Modern Warfare II (Sep 18, 2022 A Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Modern Warfare II (Sep 18, 2022 B Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Modern Warfare II (Sep 6, 2022 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Vanguard (May 20, 2021 prototype) | | PlayStation 4 | | |
| Call of Duty: Vanguard (Sep 12, 2021 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: Vanguard (Sep 4, 2021 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: WWII (Aug 27, 2017 Multiplayer prototype) | | Xbox One | | |
| Call of Duty: World at War (May 11, 2007 prototype) | | Xbox 360 | | |
| Call of Duty: World at War (Oct 16, 2008 Multiplayer prototype) | | Xbox 360 | | |
| Call of Duty: World at War (Patch Data prototype) | | Xbox 360 | | |
| Call of Juarez (Apr 17, 2007 prototype) | | Xbox 360 | | |
| Call of Juarez (DLC GatewayDark prototype) | | Xbox 360 | | |
| Call of Juarez (DLC MineExtra prototype) | | Xbox 360 | | |
| Call of Juarez: Gunslinger (Mar 4, 2013 prototype) | | Xbox 360 | | |
| Caltron 9-in-1 (Prototype) | | NES | | |
| Camera demo (May 27, 2010 prototype) | | Nintendo 3DS | | |
| Camera demo (May 28, 2010 prototype) | | Nintendo 3DS | | |
| Camera demo (May 31, 2010 prototype) | | Nintendo 3DS | | |
| Cannon Fodder (Prototype) | | Game Boy Color | | |
| Cannon Fodder (v0727.1 prototype) | | 3DO | | |
| Cannon Spike (May 15, 2000 prototype) | | Dreamcast | | |
| Capcom Fighting Evolution (Oct 29, 2004 prototype) | | PlayStation 2 | | |
| Capcom vs. SNK 2: Mark of the Millennium 2001 (Jul 24, 2001 prototype) | | PlayStation 2 | | |
| Capcom's Soccer Shootout (prototype) | | SNES | | |
| Captain Harlock (Non Interactive Demo) | | Game Boy Advance | | |
| Captain Quazar (Sep 21, 1995 prototype) | | 3DO | | |
| Captain Silver (Prototype) | | Sega Master System | | |
| Carcassonne (Jul 21, 2006 prototype) | | Xbox 360 | | |
| Cardinal Syn (Dec 14, 1997 prototype) | | PlayStation | | |
| Cardinal Syn (Feb 27, 1998 prototype) | | PlayStation | | |
| Carl Lewis Athletics 2000 (Prototype) | | Game Boy Color | | |
| Carmageddon (GBC prototype) | | Game Boy Color | | |
| Carmageddon TDR 2000 (prototype) | | Game Boy Color | | |
| Carmageddon: Crude Awakening (Dec 12, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Dec 13, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Dec 18, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Dec 19, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Dec 20, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Dec 21, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Dec 22, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 1, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 11, 2008 15.29 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 11, 2008 23.55 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 11, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 12, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 12, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 15, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 15, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 22, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 22, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 4, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 6, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Feb 6, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 10, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 11, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 16, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 16, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 16, 2008 C prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 16, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 17, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 18, 2008 16.49 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 18, 2008 17.22 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 18, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 18, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 18, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 2, 2008 15.12 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 2, 2008 16.42 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 2, 2008 19.26 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 22, 2008 19.48 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 22, 2008 21.59 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 22, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 22, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 22, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 23, 2008 A prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 23, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 24, 2008 13.08 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 24, 2008 16.17 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 25, 2008 16.43 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 25, 2008 17.58 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 25, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 28, 2008 13.09 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 28, 2008 13.46 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 28, 2008 16.25 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 28, 2008 18.10 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 28, 2008 21.04 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 28, 2008 23.32 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 31, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 6, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 7, 2008 13.00 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 7, 2008 19.00 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 7, 2008 20.00 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 8, 2008 B prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 8, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jan 9, 2008 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jul 4, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jun 12, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jun 26, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Jun 28, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (May 22, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (May 23, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (May 24, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (May 27, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (May 30, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (May 31, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (May 9, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Nov 26, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Nov 6, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Nov 7, 2007 prototype) | | Xbox 360 | | |
| Carmageddon: Crude Awakening (Nov 8, 2007 prototype) | | Xbox 360 | | |
| Carnivalé: Cenzo's Adventure (Jul 21, 2000 prototype) | | Nintendo 64 | | |
| Carol Vorderman's Sudoku (Jul 20, 2006 prototype) | | PlayStation Portable | | |
| Carol Vorderman's Sudoku (Jun 7, 2006 prototype) | | PlayStation 2 | | |
| Carrier (May 10, 1999 prototype) | | Dreamcast | | |
| Cars: Mater-National Championship (Prototype) | | Nintendo Wii | | |
| Casper (Dec 15 1995 Prototype) | | 3DO | | |
| Casper (Game Boy Prototype) | | Game Boy | | |
| Casper and the Ghostly Trio (Apr 3, 2006 prototype) | | PlayStation 2 | | |
| Casper and the Ghostly Trio (Mar 13, 2006 prototype) | | PlayStation 2 | | |
| Casper and the Ghostly Trio (Mar 23, 2006 prototype) | | PlayStation 2 | | |
| Castle Quest (Castle Raider prototype) | | BBC Micro | | |
| Castle of Illusion: Starring Mickey Mouse (May 25, 1990 prototype) | | Sega Master System | | |
| Castle of Shikigami III (Feb 12, 2008 prototype) | | Nintendo Wii | | |
| Castlequest (Prototype) | | NES | | |
| Castlevania Bloodlines (Aug 4, 1993 prototype) | | Sega Mega Drive | | |
| Castlevania Bloodlines (Oct 3, 1993 Prototype) | | Sega Mega Drive | | |
| Castlevania Judgment (Prototype) | | Nintendo Wii | | |
| Castlevania: Harmony of Despair (Apr 12, 2010 prototype) | | Xbox 360 | | |
| Castlevania: Lords of Shadow (Jul 24, 2010 prototype) | | Xbox 360 | | |
| Castlevania: Resurrection (Nov 5, 1999 prototype) | | Dreamcast | | |
| Castlevania: Symphony of the Night (Feb 14, 2007 prototype) | | Xbox 360 | | |
| Castlevania: Symphony of the Night (Game.com Prototype) | | Game.com | | |
| Castlevania: The Dracula X Chronicles (Jan 30, 2007 prototype) | | PlayStation Portable | | |
| Catan (DLC Generals Expansion Pack 1 prototype) | | Xbox 360 | | |
| Catan (DLC Mayfair Skin Pack prototype) | | Xbox 360 | | |
| Catan (Mar 28, 2007 prototype) | | Xbox 360 | | |
| Catan (May 3, 2005 prototype) | | N-Gage | | |
| Cate West: The Vanishing Files (Prototype) | | Nintendo Wii | | |
| Caterpillar (Jul 13, 2010 prototype) | | PlayStation Portable | | |
| Caterpillar (Jul 16, 2010 prototype) | | PlayStation Portable | | |
| Catherine (Jun 10, 2011 Dev demo) | | Xbox 360 | | |
| Catrap (prototype) | | Game Boy | | |
| Catwoman (Jun 15, 2004 prototype) | | Xbox | | |
| Cave Dude (Prototype) | | Game Gear | | |
| Caveman Ninja: Joe & Mac (Prototype) | | NES | | |
| Cel Damage (Aug 23, 2001 16.26 prototype) | | Xbox | | |
| Cel Damage (Aug 23, 2001 prototype) | | Xbox | | |
| CellFactor: Psychokinetic Wars (Dec 12, 2008 prototype) | | Xbox 360 | | |
| CellFactor: Psychokinetic Wars (Mar 2, 2009 prototype) | | Xbox 360 | | |
| Center Ring Boxing (Sep 26, 1995 prototype) | | Sega Saturn | | |
| Centipede & Millipede (Mar 19, 2007 prototype) | | Xbox 360 | | |
| Centipede (Atari Lynx prototype) | | Atari Lynx | | |
| Centipede (prototype) | | Atari 2600 | | |
| Chameleon Twist 2 (Feb 1, 1999 build) | | Nintendo 64 | | |
| Champions World Class Soccer (Mar 18, 1994 prototype) | | Sega Mega Drive | | |
| Champions: Return to Arms (Sep 9, 2004 prototype) | | PlayStation 2 | | |
| Championship Manager 2007 (DLC Challenge Mode Scenarios prototype) | | Xbox 360 | | |
| Championship Manager 2007 (DLC January 2007 Database Update prototype) | | Xbox 360 | | |
| Championship Manager 2007 (DLC National Geographic PDLC1 prototype) | | Xbox 360 | | |
| Championship Manager 2010 (Prototype) | | PlayStation Portable | | |
| Championship Surfer (Aug 15, 2000 prototype) | | Dreamcast | | |
| Chaos Control (May 29, 1996 prototype) | | Sega Saturn | | |
| Charlie Blast's Territory (prototype) | | Nintendo 64 | | |
| Chase the Express (Apr 27, 2000 prototype) | | PlayStation | | |
| Chavez (prototype) | | SNES | | |
| Chelnov (Jul 23, 1997 prototype) | | Sega Saturn | | |
| Chessmaster 7000 (Sep 17, 1999 prototype) | | PC | | |
| Chessmaster Live (2 Unkown DLCs Pack prototype) | | Xbox 360 | | |
| Chessmaster Live (DLC Breaking the Lines prototype) | | Xbox 360 | | |
| Chessmaster Live (Jan 26, 2008 prototype) | | Xbox 360 | | |
| Chester Cheetah: Wild Wild Quest (Lynchmob prototype) | | SNES | | |
| Chester Field: Ankoku Shin heno Chousen (Prototype) | | NES | | |
| Chester Field: Ankoku Shin heno Chousen (US prototype) | | NES | | |
| Chibi Maruko-chan: Mezase! Minami no Island!! (Prototype) | | SNES | | |
| Chicago Enforcer (Nov 8, 2004 prototype) | | Xbox | | |
| Chicago Syndicate (Jul 10, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 11, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 19, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 20, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 21, 1995 prototype B) | | Game Gear | | |
| Chicago Syndicate (Jul 21, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 27, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 3, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 5, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jul 6, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 1, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 12, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 14, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 19, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 20, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 22, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 26, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 28, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 29, 1995 prototype B) | | Game Gear | | |
| Chicago Syndicate (Jun 29, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 30, 1995 prototype B) | | Game Gear | | |
| Chicago Syndicate (Jun 5, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 7, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Jun 8, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (Mar 20, 1995 prototype) | | Game Gear | | |
| Chicago Syndicate (May 5, 1995 prototype) | | Game Gear | | |
| Chicken Run (Apr 10, 2000 3:50:14 PM prototype) | | Game Boy Color | | |
| Chicken Run (Apr 18, 2000 prototype) | | PlayStation | | |
| Chicken Run (Apr 25, 2000 3:50:22 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 1, 2000 8:47:08 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 1, 2000 prototype) | | Dreamcast | | |
| Chicken Run (Aug 10, 2000 2:57:02 AM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 10, 2000 4:05:34 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 10, 2000 7:21:52 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 11, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 14, 2000 12:45:14 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 14, 2000 3:39:42 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 14, 2000 5:55:14 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 15, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 16, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 17, 2000 2:03:42 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 17, 2000 4:05:10 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 18, 2000 12:32:52 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 18, 2000 5:42:36 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 19, 2000 12:24:16 AM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 19, 2000 6:15:28 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 20, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 21, 2000 11:32:54 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 21, 2000 12:14:36 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 21, 2000 2:56:02 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 21, 2000 3:40:24 PM prototype) | | Game Boy Color | | |
| Chicken Run (Aug 22, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 25, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 3, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 7, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Aug 9, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jan 18, 2000 prototype) | | PlayStation | | |
| Chicken Run (Jul 10, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 12, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 14, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 17, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 20, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 21, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 24, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 26, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 27, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jul 31, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jun 12, 2000 cr calm prototype) | | Game Boy Color | | |
| Chicken Run (Jun 12, 2000 cr rowdy prototype) | | Game Boy Color | | |
| Chicken Run (Jun 12, 2000 prototype) | | PlayStation | | |
| Chicken Run (Jun 15, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Jun 16, 2000 prototype) | | PlayStation | | |
| Chicken Run (Jun 28, 2000 prototype) | | PlayStation | | |
| Chicken Run (Jun 30, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (June 8, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (Mar 20, 2000 12:00:46 AM prototype) | | Game Boy Color | | |
| Chicken Run (Mar 28, 2000 prototype) | | PlayStation | | |
| Chicken Run (May 17, 2000 3:08:26 PM prototype) | | Game Boy Color | | |
| Chicken Run (May 17, 2000 3:08:44 PM prototype) | | Game Boy Color | | |
| Chicken Run (May 17, 2000 3:09:04 PM prototype) | | Game Boy Color | | |
| Chicken Run (May 17, 2000 3:12:32 PM prototype) | | Game Boy Color | | |
| Chicken Run (May 22, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (May 24, 2000 prototype) | | Game Boy Color | | |
| Chicken Run (May 3, 2000 prototype) | | PlayStation | | |
| Chicken Run (May 4, 2000 4:03:04 PM prototype) | | Game Boy Color | | |
| Chicken Run (May 8, 2000 4:07:02 PM prototype) | | Game Boy Color | | |
| Chili Con Carnage (Sep 23, 2006 prototype) | | PlayStation Portable | | |
| Chill (Jan 19, 1998 prototype) | | Sega Saturn | | |
| Chime (Oct 16, 2009 prototype) | | Xbox 360 | | |
| Chinese Lord (Jan 10, 2008 prototype) | | Xbox 360 | | |
| Chip 'N Dale: Rescue Rangers (Prototype) | | NES | | |
| Chip's Challenge (v0.924B prototype) | | NES | | |
| Choplifter HD (Aug 5, 2011 prototype) | | Xbox 360 | | |
| Choplifter III (Prototype A) | | SNES | | |
| Choplifter III (Prototype B) | | SNES | | |
| Choplifter! (Jul 1, 1986 prototype) | | Sega Master System | | |
| Choplifter! (SG-1000 Prototype) | | SG-1000 | | |
| Choplifter! (Sega Master System Prototype) | | Sega Master System | | |
| Choro Q (Aug 14, 2004 prototype) | | PlayStation 2 | | |
| Choro Q Wonderful! (May 17, 1999 demo) | | PlayStation | | |
| Chou Majin Eiyuuden Wataru: Mazekko Monster (Prototype) | | Game Boy | | |
| Chouon Senshi Borgman (Prototype) | | Sega Master System | | |
| Chromehounds (24 DLCs Pack prototype) | | Xbox 360 | | |
| Chrono Cross (Apr 11, 2000 prototype) | | PlayStation | | |
| Chrono Cross (Mar 8, 2000 prototype) | | PlayStation | | |
| ChuChu Rocket! (Apr 28, 2000 build) | | Dreamcast | | |
| ChuChu Rocket! (Jan 27, 2000 prototype) | | Dreamcast | | |
| Chuck E. Cheese's Party Games (May 10, 2010 prototype) | | Nintendo Wii | | |
| Chuck Rock (Prototype) | | Game Gear | | |
| Chuck Rock (prototype) | | SNES | | |
| Chuck Yeager's Fighter Combat (Prototype) | | NES | | |
| Cipher Complex (Feb 23, 2009 prototype) | | Xbox 360 | | |
| Cipher Complex (Nov 18, 2009 prototype) | | Xbox 360 | | |
| Circuit Breakers (Jan 23, 1998 prototype) | | PlayStation | | |
| Citadel (Oct 22, 1985 prototype) | | BBC Micro | | |
| City Builder (Nov 24, 2009 prototype) | | Nintendo Wii | | |
| Civil War: A Nation Divided (DLC redericksburg Bonus prototype) | | Xbox 360 | | |
| ClaDun x2 (Oct 2, 2010 prototype) | | PlayStation Portable | | |
| Clash at Demonhead (Japanese prototype) | | NES | | |
| Clash of the Titans (Dec 6, 2009 prototype) | | Xbox 360 | | |
| ClayFighter (Sep 28, 1993 prototype) | | SNES | | |
| ClayFighter 2: Judgment Clay (Apr 28, 1995 prototype) | | Sega 32X | | |
| ClayFighter 63 1/3 (Aug 21, 1997 prototype) | | Nintendo 64 | | |
| Clive Barker's Jericho (Aug 31, 2007 prototype) | | Xbox 360 | | |
| Clive Barker's Jericho (Jun 18, 2007 prototype) | | Xbox 360 | | |
| Clock Tower (Jul 5, 1997 prototype) | | PlayStation | | |
| Clock Tower (Prototype) | | SNES | | |
| Clockwork Knight (Mar 28, 1995 prototype) | | Sega Saturn | | |
| Clockwork Knight - Pepperouchau's Adventure Sample (Nov 14, 1994 build) | | Sega Saturn | | |
| Clockwork Knight 2 (Aug 30, 1995 prototype) | | Sega Saturn | | |
| Clockwork Knight: Pengin War (Oct 21, 1995 prototype) | | Sega Saturn | | |
| Close Combat: First to Fight (Mar 13, 2005 prototype) | | Xbox | | |
| Cloudy with a Chance of Meatballs 2 (Apr 10, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Apr 12, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jul 12, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jul 2, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jul 3, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jul 7, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jun 18, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jun 25, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jun 28, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Jun 7, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Mar 12, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (Mar 26, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (May 3, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (May 31, 2013 prototype) | | Nintendo DS | | |
| Cloudy with a Chance of Meatballs 2 (May 6, 2013 prototype) | | Nintendo DS | | |
| Club Drive (Prototype) | | Atari Jaguar | | |
| Club Penguin: Elite Penguin Force (Sep 30, 2008 prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Dec 21, 2009 prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 11, 2010 A prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 11, 2010 B prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 11, 2010 C prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 11, 2010 D prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 11, 2010 E prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 14, 2010 A prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 14, 2010 B prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 20, 2010 A prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 20, 2010 B prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 20, 2010 C prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 20, 2010 D prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 20, 2010 E prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 20, 2010 F prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 21, 2010 prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 4, 2010 prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Jan 7, 2010 prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Mar 3, 2010 prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Mar 4, 2010 A prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Mar 4, 2010 B prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Mar 4, 2010 C prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Mar 4, 2010 D prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Mar 4, 2010 E prototype) | | Nintendo DS | | |
| Club Penguin: Elite Penguin Force: Herbert's Revenge (Mar 5, 2010 prototype) | | Nintendo DS | | |
| Clueless Fashion! (prototype) | | Nintendo DS | | |
| Cocoto Kart Racer (Prototype) | | Nintendo DS | | |
| Cocoto Platform Jumper (Nov 18, 2003 prototype) | | PlayStation 2 | | |
| Code Lyoko: Quest for Infinity (Sep 21, 2007 prototype) | | Nintendo Wii | | |
| Coffeetime Crosswords (DLC PDLC Pack 1 A prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC PDLC Pack 1 B prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC PDLC Pack 2 A prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC PDLC Pack 2 B prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC PDLC Pack 2 C prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC PDLC Pack 3 A prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC PDLC Pack 3 B prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC PDLC Pack 3 C prototype) | | Xbox 360 | | |
| Coffeetime Crosswords (DLC content1 B prototype) | | Xbox 360 | | |
| Cold Fear (Jan 21, 2005 prototype) | | Xbox | | |
| Cold Winter (Feb 9, 2005 prototype) | | PlayStation 2 | | |
| Colin McRae Rally 04 (Jul 16, 2003 prototype) | | PlayStation 2 | | |
| Colin McRae Rally 04 (Jul 25, 2003 prototype) | | Xbox | | |
| Colin McRae Rally 2.0 (May 2, 2000 prototype) | | PlayStation | | |
| Colin McRae Rally 2005 (Jul 21, 2005 prototype) | | PlayStation Portable | | |
| Colin McRae Rally 2005 (Jul 29, 2004 prototype) | | PlayStation 2 | | |
| Colin McRae Rally 3 (Aug 19, 2002 prototype) | | Xbox | | |
| Collapsar (Feb 1987 prototype) | | Commodore 64 | | |
| College Football USA 96 (Jun 21, 1995 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Apr 13, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Apr 18, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Apr 19, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Apr 29, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 1, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 14, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 15, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 18, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 20, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 3, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 7, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (Jun 8, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (May 11, 1994 prototype A) | | Sega Mega Drive | | |
| College Football's National Championship (May 17, 1994 prototype A) | | Sega Mega Drive | | |
| College Football's National Championship (May 20, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (May 25, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (May 3, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (May 31, 1994 prototype) | | Sega Mega Drive | | |
| College Football's National Championship (May 6, 1994 prototype) | | Sega Mega Drive | | |
| College Hoops 2K7 (Nov 8, 2006 prototype) | | PlayStation 2 | | |
| College Hoops 2K8 (Oct 1, 2007 prototype) | | PlayStation 2 | | |
| Colony (1996 demo) | | Commodore 64 | | |
| Colony Wars (Aug 5, 1997 prototype) | | PlayStation | | |
| Color Cross (Prototype A) | | Nintendo DS | | |
| Color Cross (Prototype B) | | Nintendo DS | | |
| Color Cross (Prototype C) | | Nintendo DS | | |
| Color Cross (Prototype D) | | Nintendo DS | | |
| Color Cross (Prototype E) | | Nintendo DS | | |
| Color Dreams Color Test | | NES | | |
| Colors of Modern Rock (Feb 22, 1993 prototype) | | Sega CD | | |
| Colosseum: Road to Freedom (Mar 23, 2005 prototype) | | PlayStation 2 | | |
| Columbus: Ougon no Yoake (Prototype) | | NES | | |
| Columns (Prototype) | | Sega Master System | | |
| Combat Elite: WWII Paratroopers (May 13, 2004 prototype) | | PlayStation 2 | | |
| Combat II (Fighter Command prototype) | | Atari 2600 | | |
| Combat II (Firefox prototype) | | Atari 2600 | | |
| Combat II (Jun 1, 1983 prototype) | | Atari 2600 | | |
| Combat II (Prototype) | | Atari 2600 | | |
| Comic Jumper: The Adventures of Captain Smiley (Jun 10, 2010 prototype) | | Xbox 360 | | |
| Comix Zone (Apr 4, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Feb 25, 2009 prototype) | | Xbox 360 | | |
| Comix Zone (Jul 12, 1995 prototype FULSCR) | | Sega Mega Drive | | |
| Comix Zone (Jul 12, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Jun 1, 1995 prototype B) | | Sega Mega Drive | | |
| Comix Zone (Jun 1, 1995 prototype C) | | Sega Mega Drive | | |
| Comix Zone (Jun 1, 1995 prototype D) | | Sega Mega Drive | | |
| Comix Zone (Jun 12, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Jun 2, 1995 prototype B) | | Sega Mega Drive | | |
| Comix Zone (Jun 2, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Jun 28, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Jun 3, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Jun 5, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Jun 6, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (Jun 9, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (May 26, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (May 30, 1995 prototype) | | Sega Mega Drive | | |
| Comix Zone (May 31, 1995 prototype) | | Sega Mega Drive | | |
| Command & Conquer 3: Kane's Wrath (DLC Map Pack 1 prototype) | | Xbox 360 | | |
| Command & Conquer 3: Tiberium Wars (DLC Ground Zero Map prototype) | | Xbox 360 | | |
| Command & Conquer: Red Alert (Oct 11, 1996 prototype) | | PC | | |
| Command & Conquer: Red Alert 3 (Aug 28, 2008 DLC Map Pack 1 prototype) | | Xbox 360 | | |
| Command & Conquer: Red Alert 3 (Oct 8, 2008 prototype) | | Xbox 360 | | |
| Command and Conquer: Commando (Jul 14, 1997 prototype) | | PlayStation | | |
| Commandos 2 (Nov 28, 2002 prototype) | | Game Boy Advance | | |
| Commandos: Behind Enemy Lines (May 18, 1998 prototype) | | PC | | |
| Compton's Interactive Encyclopedia: @World Edition (Oct 31, 1996 prototype) | | Apple Pippin | | |
| Computer BattleTech (Jan 22, 1998 prototype) | | PC | | |
| Conan (Aug 28, 2007 prototype) | | Xbox 360 | | |
| Condemned 2: Bloodshot (Dec 12, 2007 prototype) | | Xbox 360 | | |
| Condemned 2: Bloodshot (Feb 3, 2008 prototype) | | Xbox 360 | | |
| Condemned: Criminal Origins (Aug 10, 2005 prototype) | | Xbox 360 | | |
| Confidential Mission (Mar 3, 2001 prototype) | | Dreamcast | | |
| Confidential Mission (Mar 9, 2001 prototype) | | Dreamcast | | |
| Conflict: Denied Ops (DLC Compass Pack prototype) | | Xbox 360 | | |
| Conflict: Denied Ops (Nov 15, 2007 prototype) | | PlayStation 3 | | |
| Conflict: Desert Storm (Jul 8, 2002 prototype) | | PlayStation 2 | | |
| Conflict: Global Terror (Aug 9, 2005 prototype) | | PlayStation 2 | | |
| Congo: The Movie - Secret of Zinj (Prototype) | | SNES | | |
| Conker Live & Reloaded (Apr 9, 2005 prototype) | | Xbox | | |
| Conker's Bad Fur Day (Aug 26, 2000 prototype) | | Nintendo 64 | | |
| Conker's Bad Fur Day (Oct 25, 2000 prototype) | | Nintendo 64 | | |
| Conker: Live & Reloaded (debug build) | | Xbox | | |
| Conquest Earth (Aug 18, 1997 prototype) | | PC | | |
| Conspiracy: Weapons of Mass Destruction (Feb 6, 2005 prototype) | | PlayStation 2 | | |
| Constant C (prototype) | | Xbox 360 | | |
| Constantine (Nov 18, 2004 prototype) | | PlayStation 2 | | |
| Contact (Apr 27, 2006 prototype) | | Nintendo DS | | |
| Contra (Oct 25, 2006 prototype) | | Xbox 360 | | |
| Contra (Sample Prototype) | | NES | | |
| Contra 4 (April 10, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 10, 2007 prototype B) | | | | |
| Contra 4 (April 10, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 13, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 13, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 13, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 17, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 17, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 17, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 18, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 18, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 18, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 20, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 20, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 20, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 22, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 22, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 22, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 24, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 24, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 24, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 25, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 25, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 25, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 26, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 26, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 26, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 29, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 29, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 29, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 4, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 4, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 4, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 5, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (April 5, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (April 5, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (April 5, 2007 prototype D) | | Nintendo DS | | |
| Contra 4 (April 5, 2007 prototype E) | | Nintendo DS | | |
| Contra 4 (April 5, 2007 prototype F) | | Nintendo DS | | |
| Contra 4 (August 13, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (August 13, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (August 13, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (August 2, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (August 2, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (August 2, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (August 24, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (August 28, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (August 4, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (August 4, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (August 4, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (August 7, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (August 8, 2007 18:30:54 prototype) | | Nintendo DS | | |
| Contra 4 (August 8, 2007 18:47:29 prototype) | | Nintendo DS | | |
| Contra 4 (August 8, 2007 21:39:53 prototype) | | Nintendo DS | | |
| Contra 4 (December 19, 2007 prototype) | | Nintendo DS | | |
| Contra 4 (February 12, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (February 12, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (February 12, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (February 15, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (February 15, 2007 prototype B) | | Nintendo DS | | |
| Contra 4 (February 15, 2007 prototype C) | | Nintendo DS | | |
| Contra 4 (February 18, 2007 prototype A) | | Nintendo DS | | |
| Contra 4 (February 18, 2007 prototype B) | | Nintendo DS | | |